Tobacco-pipe.



J. H. ROTH.

TOBACCO PIPE. APPLIOATION FILED MAR. 12, 1913.

1,084,902, Patented Jan. 20, 191i l m/tneooaa JOSEPH 1-1. ROTH, orCHICAGO, ILLINOIS.

TOBACCO- PIP E.

Specification of Letters Patent.

Patented Jan. 20, 1914.

Application filed March 12, 1913. Serial No., 753,811.

To all whom it may concern:

Be it known that I, JOSEPH H. Born, a citizen of the United States,residing at Chicago, in the county of (look and State of Illinois, haveinvented certain new and useful Improvements in Tobacco-Pipes; and I dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same.

This'invention relates to tobacco pipes, and has for its object toprovide a pipe composed of detachable parts, so arranged and constructedas to thoroughly and reliably clean the pipe when the parts thereof aredetached.

A further object is to provide a tobacco pipe having means in itself forthoroughly cleaning the smoke flue from a point directly under the bowlto the mouth piece when the stem is disengaged from the remainder of thepipe.

Another object is to provide a pipe in which the smoke is caused totravel a cir; cuitous route, thereby insuring a cool and purer smoke tothe user.

In the accompanying drawings, Figure 1 represents a longitudinalsectional view of the pipe complete. Fig. 2 represents a bot tom planthereof. Fig. 3 represents an enlarged sectional view through the bowl.Fig. i: represents a sectional view on the line it- 1 of Fig. 1, and,Fig. 5 represents a top plan view of a portion of the stem and sleeve.

Referring to the drawings, the numeral 1 indicates the bowl of the pipe,constructed of any desired form, and is preferably pro vided with anintegral base 2, communicat ing with the interior of the bowl 1 by thepassage 3. The hollow stem 4 is provided with a reduced sleeve 5 whichis adapted for frictional engagement within the opening of the base 2,while on the opposite end of the stem 4 is threaded a mouth piece 6which may be formed of any desired material such as rubber, amber or thelike. The extreme end of the sleeve 5 is provided with a re cess 5. Thebore through the base 4 is preferably larger than the bore in theordinary pipe, so. as to snugly receive the shank 7 having one end fixedin the bowl 1 by means of the pin 8, which latter may be removable. Theshank 7 is of the proper length so as to abut themout-h piece owith itsfree end when the parts of the pipe are assembled, as shown in Fig. 1.The shank 7 is provided with a spiral groove 9 extending throughout theentire length thereof from a point directly beneath the passage 3 to themouth piece 6, and the pitch of said groove is gradually decreased fromthe free toward the fixed end thereof. A short bore 10 which is inregistration with the bore of the mouth piece is formed from the freeend of the shank 7 a distance inwardly through said shank and isconnected with the spiral groove 9 by the passage 11. The passage 11 ispreferably formed at or near the free end of the shank 7 in order thatthe bore 10 will serve as a trap to arrest the flow of saliva.

The bowl of the pipe is preferably const ructed of wood, and the stem 4of hard rubber so as to provide a non-binding housing for the shank 7,which latter is preferably formcd from some light metal such asaluminum.

A semi-spherical lug 12 is formed at the extreme endof the sleeve 5 andis snugly engaged within the spiral groove 9 of the shank 7, so thatwhen the shank 4 is separated from the bowl 1 the lug 12 will travelthrough the groove and effectively clean therefrom any accumulation ofsaliva or tobacco oil. As the lug 12 engages the threads at the extremeend of the shank 7 directly beneath the passage 3, it will be seen thatthe shank will be thoroughly cleaned throughout its entire length whenthe parts are separated.

What I claim is 1. A pipe comprising a bowl, a spirally grooved shanksecured to said bowl, a hollow stem engaged over said shank, and meanscarried by said stem for engaging within the groove and adapted totravel outwardly therethrough when the stem and bowl are detached.

2. A pipe comprising a bowl, having a recessed base formed thereon, anda passage connecting the interior of the bowl and the recess in saidbase, a spirally grooved shaft having one end secured in said bowl atthe inner end of said recess, a hollow stem removably engaged over saidshaft and having a reduced end seated in said recess around said shaft,said stem having a recess therein affording communication between thepassage in saidbowl and the groove in said shaft, and a lug on said stemengaging said groove and adapted to travel outwardly; I A

thereover when said stem is removable from said bowl.

3. Apipe comprising a bowl, having a recessed base formed thereon and apassage connecting the interior of the bowl and the I v inner end ofsaid recess, a hollow stem removably engaged over said shaft and havinga reduced end seat in said recess around said shaft, said stem having arecess therein affording a communication between the passage in saidbowl and the groove in said shaft, means carried by said stem for,engaging the groove and adapted to travel therein when said stem isremoved from said bowl, and a mouth piece secured at the outer end ofsaid stem, said shaft having a 1ongitudinal bore closed at its-inner endand in alinement With the bore in said mouth piece, said shaft providedWith a passage connecting said bore and the groove in said shaft nearthe outer end of saidvbore.

In testimony whereof have signed my name to this specification in thepresence 25 witnesses.

of two subscribing JOSEPH H. ROTH.

Witnesses W. R. LUDLAM,

PALMER BROWNE.

